Improvement in gang-ploughs



A @eine tutes @einem @fge WILLIAM S. GA'ILIN AN BENJAMIN B.. HUBBARD, OFGREEN TOP, MISSOURI.

Letters Patent No. 75,895, dated lfa'reh 24, 1868,

t IMPROVEMENT IN AGAISIGVPLOUGHS.

'IO ALL WHOM IT MAY CONGE-RN:

Be it known that we, WILLIAM S. GATLIN and BENJAMIN R. HUBBARi), ofGreen Top, in the county of Schuyler, and Stcteof Missouri, haveinvented a new und useful Improvement in Gang-Plonghs; und we do herebydeclare that the following is a. full and clear description thercoi',reference being'liud to the accompany; ing drawings, and to thelettersof reference marked thereon. i l

This invention relatos to the mode of attaching the plough-beams to thecarriage-freine, und also to the device for lifting the ploughs up outof theground.

To enable those skilled in the art to'maike and use our improved plough,we will proceed to describe its construction and operation.

Figure 1 ofthe drawings is a. plan ofthe machine.

Figure 2 is usectonal elevation ofthe some, teken on the line a; :e ofiig. 1.

Figure 3 is e front elevation.

The wheels A `and the frumeA form u errige,much the sume as those utpresent employed in many gengfpIou-ghs. 'To the forward beam a oftheframe, A', there are attached, by means of hinge-joints, two links ordrew-bars b, to the back ends of which are attached, by some sui-tabledevice, the plough-beems B. In the present construction ofthe parts, thetrnnsverso bur b' is used for this uttuchment. To the ends of this bnr bcre ottalehed,l1y hinge-joints, the vertical links C, to the top endsof' which cre attached thc forward ends of the levers C1. These leversfind their fulcra, at e over the frame, A', und thcirbnel: endsare heldin :my required elevation by means of the racks O2, nlso ix ed to frameA. 'lh'e racks C2 should he graduated, so :is to receive the ends'ef thelevers nt any required height. By raising or lowering the ends ofthesaid levers in the said grnd nations, the ploughs willbe set so esto runat :my required depth, und the adjustment-may be mude,t` required, whilethe ploughs are in motion. A roch-shaft, D, placed across the buck endofthe freine, A, and having,r its bearings therein, is connected withthe ploughbeams by means of the arms D und the links D2, und with thelever D3 by means of the cordel. When the said lev'er is thrown iup, asin full lines in fig. 2, the ploughs will be down in the ground, butwhen it isdown, :1s in the red lines of the same figure, the ploughswill be raised up, :1s also Vshown by thelred `lines in the suinefigure, 'lhe lever Dl is curved, so that when it is thrown forward,

the cord d will druw upon it in u line below its exis, undl consequentlyit will be held down, and the ploughs up,

by means of this construction;

I-Icving described our invention, what we clnm, is

v1. 'lhe construction und arrangement ofthe druwhnrs b, the links O, thelevers Cl, und the racks GL', with reference to the frame A and theplough-beams B.

2. We claim thc device D, Dl, D2, D, and d, foi-lifting the ploughs upout of the ground, substuntiully as described and set forth.

WILLIAM S. GAILIN, BENJAMIN It. IIUBBARD. Witnesses:

WILLIAM A. SICKLES, J. D. K Usn.

